Well, I accomplished the prerequisite for the club and 'skimmed' all 159 pages of this thread. I recently aquired a used MR2 with dual beckett's, and wc-2 collection cup.
After getting it all plumbed, (sitting in sump), and turned on, I have a couple issues. First, I wonder if the pump is too large, it's a Gen X GX8500 submersible pump. Setting the water level (with the air off), is too high, even with the gate valve all the way open. I tried putting a ball valve on the pump supply line, but when I closed that a little to get the right water level, there was no air at the beckett's. Heck, I even took the needle valves out, and not much of anything. I tore the whole installation apart thinking something was wrong, only to find out if I open the supply line ball valve all the way, then I have air, but then i'm back to the high water level. Any ideas? Is the pump too large? It seems to be rated @ 2249gph and 16.4 max head.
My second question is for those of you that have also installed their skimmers in sump. What are you doing to cut down on the return bubbles. Even with the sump baffles, I am getting crazy bubbles back to the display. I tried the u-tube mod, but can not fit 1 1/2" pipe over the bulkhead in the box, as per steve68's website. I can go from the 1" bulkhead to 1 1/4", however, I wasn't sure how this would effect the skimmers performance. How critical is it to use 1 1/2" fittings in the box, or can I get away with the 1 1/4"? Any other ideas for getting the bubbles out of the sump when running these skimmers in sump?
Thanks for the help